Loose-leaf-binder construction.



E. F. HILL.

LOOSE LEAF BINDER CONSTRUCTION.

APPLICATION FILED APR. 12. I916.

Patented May1,1917.

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EDWARD FLETCHER HILL, OF CHICAGO, ILLINOIS, ASSIGNOB, TO EDWARD W; HILL, OF CHICAGO, ILLINOIS.

LOOSE-LEAF-BINDER CONSTRUCTION.

Specification of Letters Patent.

Application filed April 12, 1916. Serial No. 90,581.

To all whom it may concern:

Be it known that I, EDWARD F. HILL, a

citizen of the United States of America, residing at Chicago, Illinois, have invented a new and useful Loose-Leaf-Binder Construction, of which the following is a specification.

I My invention relates particularly to loose leaf ledgers, and the main object is to provide a simple and reliable construction which will have the advantages of the usual postbinder type as well as the advantages of the ring type of binder. Specifically, I desire to provide a construction which will hold leaves securely in place, and which may be adjusted to difierent thicknesses to accommodate a greater or less number of leaves and yet which can be opened out and held absolutely flat so as to facilitate the entry of accounts and the turning of pages.

Broadly speaking, the invention contemplates a construction of the telescoping posttype together with arch-like devices for connecting the free ends of the posts when the parts of the binder or ledger are spread out. It also contemplates the use of guides or alining devices for holding the part in their proper position when the posts are separated.

Figure 1 is a perspective view of a ledger type of construction shown opened out.

Fig. 2 is a fragmentary sectional view of the parts with the binder in the closed position.

Fig. 3 is a detail side view of one of the connecting arch members.

Fig. 4 is an end view of the same.

Fig. 5 is a fragmentary plan view show-v ing the connecting guide or alining devices at one edge of the binder.

The cover parts 1010' each carry telescoping post parts 1212' and 13-13 which are adapted to co-act in the usual manner and allow the covers to be expanded and retracted for accommodating different thicknesses of leaves. Preferably the parts 12 and 13 are of different heights so as to permit of maximum expansion and preferably the socket and pin parts alternate as shown in Fig. 1 so as to hold the leaves 14: more accurately in alinement.

When the parts are opened as shown in Fig. 1 connecting arch devices 15 are eecured to the free ends of the posts. The end 16 is in the form of a socket to fit over one of the smaller solid posts 12 or 12, while the end 17 is reduced in size to fit into the open end of one of the socket posts 13 or 13. The ends may be slotted as shown at 16and 17 to provide a yielding connection with the posts. Instead of slotting the socket end 16 of the arch the solid post part 12 may be slotted as shown at 12".

Two or more of these arch connectors may be employed, but preferably there will be one for each post.

It will thus be seen that the leaves can be turned readily from one side to the other by means of the arches with even greater facility than in the ring type of binder, since the posts are straight at the point where the leaves naturally lie. This also makes it possible to enter data on the sheets with much greater facility than is possible in the post type of binder. This also prevents the accidental displacement of leaves when the parts are open. It also makes it possible to use either a perforated or slotted type of leaf with equal facility. When the arches are in position the slotted leaves can be individually removed and replaced on the arches or posts with extreme ease and facility. This feature may be used with particular advantage in typewriter posting, statement making, etc.

In the form of construction shown, the cover part 10 has a back-piece 20 and the cover part 10 has a corresponding back-piece 20 which cooperate in holding the parts when they are closed, as shown -in Fig. 2. At each end the part 10 is provided withthe plate 21 and the part 10 is provided with a plate 22. To'the part 21 is hinged or pivoted a member 23 which is normally held in the dotted position shown in Fig. 1 by means of the inter-engagement of the projection at its back with a corresponding recess 24 on the end plate 21. When the parts are opened out as shown in Fig. 1 in full line, the member 23 is thrown over behind the plate 22 and its front recess 25 engages over a corresponding projection on the back of the plate 22. The member 23 also may fit in a slot between the plate 22 and the end of the back plate 20'. This device 23 thus holds the parts positively in pm sition and prevents longitudinal movement, as Well as holding the parts spaced apart properly.

\Vhat I claim is:

1. The combination with a telescoping post, expansible binder comprising two back members and oppositely disposed telescoping posts on the respective back members freely slida'ble over each other to permit varying expansion of the binder and the complete separation from each other by continuation of the expansion movement, said back members when the telescopic posts are thus separated adapted to be placed in flat. relation with their rear edges opposed and the cooperating members of the telescopic posts in opposition to each other, of connecting arches engageable with the upstanding oppositely disposed pairs of telescopic posts and reuniting the thus-separated book sections into book form.

2. In a construction of the character de scribed, the combination of cover parts, telescoping post members carried by said cover parts, end plates carried by the cover parts, alining devices secured to the end plates for holding the cover parts and posts properly spaced apart when in the open position.

3. In a constructionof the character described, the combination of cover parts, cooperating posts carried thereby, back-plates carried by said cover parts, connecting arches carried by said cover posts, end plates carried by said cover parts, alining devices for connecting the end plates when the cover parts are spread open.

4. In a construction of the character described, the combination of cover parts, telescoping posts carried by said Parts, alining devices hinged to one of said cover parts, and members carried by the other cover part having slots for receiving the ends of said alining devices.

5. The combination with a telescoping post, expansible two-part binder comprising two back members wholly separable from each other and oppositely disposed telescopic posts on the respective back members freely slidable over each other to permit varying expansion of the binder and separable from each other by continuation of the expansion movement to permit entire separation of the back members and the placing of the back members in fiat relation with their rear edges opposed and cooperating members of the telescopic posts in opposition to each other, of means for alining the thus-separated book sections to bring the upstanding telescopic posts thereon into alined opposition and connecting arches engageable with the upstanding oppositely disposed pairs of telescopic posts and serving to reunite the thus sepa; rated book sections into book form.

6. As an article of manufacture, a connecting arch for a loose leaf binder comprising a curved member having a yielding socket at one end and a yielding smaller part at the other end substantially as shown and described.

7. As an article of manufacture, a connecting arch for a loose leafbinder comprising a curved member having a socket at one endand a yielding smaller part at the other end substantially as shown and described.

EDWARD FLETCHER HILL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

